As was the style at the time, the Catalan nationalist’s philosophy soon migrated to anarchism, and he brought his army experience to the Movimiento Ibérico de Liberación (MIL), whose direction-action credo entailed bank robberies branded as “expropriation.”

Puig Antich was caught in a police ambush that also claimed the life of a police officer — at least some of the bullets seemingly delivered by police friendly fire.

Spain soon did away with the discomfiting garrote; its very last executions were carried out by firing squad.

Salvador Puig Antich was the subject of a 2006 film, Salvador. (Here is a hostile anarchist review.)

The junior partner in the day’s twin killing, Heinz Ches, was himself the subject of a documentary, Nobody’s Death: The Enigma of Heinz Ches, exploring the weird near-total obscurity of the man who shared the headlines with Salvador Puig Antich. (A clip can be viewed here.)